Efficient C(sp<sup>3</sup>)−H Carbonylation of Light and Heavy Hydrocarbons with Carbon Monoxide via Hydrogen Atom Transfer Photocatalysis in Flow**
作者:Fabian Raymenants、Tom M. Masson、Jesús Sanjosé‐Orduna、Timothy Noël
DOI:10.1002/anie.202308563
日期:2023.9.4
an efficient C−H functionalization process, enabling the regioselective installation of carbonyls in light and heavy hydrocarbons by using inexpensive carbon monoxide. Safe processing of hazardous CO and flammable alkanes is ensured in flow, with high gas-liquid mass transfer rates and fast reaction kinetics. Our method demonstrates the valorization of gaseous reagents, coupling light alkanes, CO, and
我们报告了一种高效的 C−H 官能化过程,通过使用廉价的一氧化碳,能够在轻质和重质烃中选择性安装羰基。具有高气液传质速率和快速反应动力学,可确保危险的 CO 和易燃烷烃的安全加工。我们的方法演示了气态试剂的增值,将轻质烷烃、CO 和烯烃偶联作为末端自由基陷阱。
Atom-Economical Synthesis of Unsymmetrical Ketones through Photocatalyzed CH Activation of Alkanes and Coupling with CO and Electrophilic Alkenes
A three‐component coupling between alkanes, CO, and electron‐deficient alkenes in the presence of a catalytic amount of (nBu4N)4W10O32 (TBADT) has resulted in the efficient formation of unsymmetrical ketones. This process is based on the carbonylation of alkyl radicals photocatalytically generated by CH activation of alkanes and the subsequent addition to alkenes (see scheme; EWG=electron‐withdrawing
在催化量为(n Bu 4 N)4 W 10 O 32(TBADT)的存在下,烷烃,CO和缺电子烯烃之间的三组分偶联导致有效形成不对称酮。此过程基于烷烃的CH活化光催化产生的烷基的羰基化反应,随后将其添加到烯烃中(请参见方案; EWG =吸电子基团)。